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git.gir.st - tmk_keyboard.git/blob - tmk_core/tool/mbed/mbed-sdk/libraries/fs/fat/FATFileHandle.cpp
1 /* mbed Microcontroller Library
2 * Copyright (c) 2006-2012 ARM Limited
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #include "mbed_debug.h"
26 #include "FATFileHandle.h"
28 FATFileHandle::FATFileHandle(FIL fh
) {
32 int FATFileHandle::close() {
33 int retval
= f_close(&_fh
);
38 ssize_t
FATFileHandle::write(const void* buffer
, size_t length
) {
40 FRESULT res
= f_write(&_fh
, buffer
, length
, &n
);
42 debug_if(FFS_DBG
, "f_write() failed: %d", res
);
48 ssize_t
FATFileHandle::read(void* buffer
, size_t length
) {
49 debug_if(FFS_DBG
, "read(%d)\n", length
);
51 FRESULT res
= f_read(&_fh
, buffer
, length
, &n
);
53 debug_if(FFS_DBG
, "f_read() failed: %d\n", res
);
59 int FATFileHandle::isatty() {
63 off_t
FATFileHandle::lseek(off_t position
, int whence
) {
64 if (whence
== SEEK_END
) {
65 position
+= _fh
.fsize
;
66 } else if(whence
==SEEK_CUR
) {
69 FRESULT res
= f_lseek(&_fh
, position
);
71 debug_if(FFS_DBG
, "lseek failed: %d\n", res
);
74 debug_if(FFS_DBG
, "lseek OK, returning %i\n", _fh
.fptr
);
79 int FATFileHandle::fsync() {
80 FRESULT res
= f_sync(&_fh
);
82 debug_if(FFS_DBG
, "f_sync() failed: %d\n", res
);
88 off_t
FATFileHandle::flen() {